U.S. patent application number 10/238849 was filed with the patent office on 2003-04-03 for display device for transportation means.
Invention is credited to Funayose, Yusuke, Hasegawa, Toru, Yashiro, Tomohiko.
Application Number | 20030064642 10/238849 |
Document ID | / |
Family ID | 19107550 |
Filed Date | 2003-04-03 |
United States Patent
Application |
20030064642 |
Kind Code |
A1 |
Funayose, Yusuke ; et
al. |
April 3, 2003 |
Display device for transportation means
Abstract
A jet propulsion boat is equipped with a liquid crystal display
unit displaying operation information. An ordinary movement of the
jet propulsion boat is regarded as an ordinary state. When the need
arises for abruptly reducing the speed of the transportation means
or abruptly changing the direction of the transportation means, and
the like it is regarded as a non-ordinary state. The liquid crystal
display unit is caused to reverse a white-and-black display thereof
when the jet propulsion boat shifts from the ordinary state to the
non-ordinary state. It is possible to sensitively and directly
notify the driver that the transportation means is in a
non-ordinary state. As a result, it becomes easier to recognize
that the jet propulsion boat is in a non-ordinary state.
Inventors: |
Funayose, Yusuke; (Saitama,
JP) ; Hasegawa, Toru; (Saitama, JP) ; Yashiro,
Tomohiko; (Saitama, JP) |
Correspondence
Address: |
BIRCH STEWART KOLASCH & BIRCH
PO BOX 747
FALLS CHURCH
VA
22040-0747
US
|
Family ID: |
19107550 |
Appl. No.: |
10/238849 |
Filed: |
September 11, 2002 |
Current U.S.
Class: |
440/84 |
Current CPC
Class: |
B63B 49/00 20130101 |
Class at
Publication: |
440/84 |
International
Class: |
B63H 021/21 |
Foreign Application Data
Date |
Code |
Application Number |
Sep 18, 2001 |
JP |
2001-284180 |
Claims
What is claimed is:
1. A display device for a transportation means, comprising: a
liquid crystal display unit, said liquid crystal display unit
displaying operation information, an ordinary movement of said
transportation means is regarded as an ordinary state, and when a
need arises for abruptly reducing a speed of said transportation
means or abruptly changing a direction of said transportation
means, it is regarded as a non-ordinary state, wherein said liquid
crystal display unit reverses a white-and-black display thereof
when said transportation means shifts from the ordinary state to
the non-ordinary state.
2. The display device for a transportation means according to claim
1, wherein a white-displayed portion in said ordinary state is
caused to reverse and blink in the order of black-white-black in a
non-ordinary state, and a black-displayed portion in said ordinary
state is caused to reverse and blink in the order of
white-black-white in the non-ordinary state.
3. The display device for a transportation means according to claim
1, wherein when said transportation means is in the ordinary state,
a black-displayed portion indicates the operation information, and
when said transportation means is in the non-ordinary state, said
black-displayed portion is caused to reverse and blink in the order
of white-black-white.
4. The display device for a transportation means according to claim
1, wherein when said transportation means is in the ordinary state,
a white-displayed portion indicates a non-operation information
portion, and when said transportation means is in the non-ordinary
state, said white-displayed portion is caused to reverse and blink
in the order of black-white-black.
5. A transportation means, comprising: a body; a steering handle
mounted for rotation on said body; an engine mounted to said body
for propelling said body; a device for measuring an operation of
said transportation means; and a liquid crystal display unit, said
liquid crystal display unit displaying operation information
measured by said device for measuring an operation of said
transportation means, an ordinary operation of said transportation
means is regarded as an ordinary state, and a non-ordinary
operation of said transportation means is regarded as a
non-ordinary state, wherein said liquid crystal display unit
reverses a white-and-black display thereof when said transportation
means shifts from the ordinary state to the non-ordinary state.
6. The transportation means according to claim 5, wherein a
white-displayed portion in said ordinary state is caused to reverse
and blink in the order of black-white-black in a non-ordinary
state, and a black-displayed portion in said ordinary state is
caused to reverse and blink in the order of white-black-white in
the non-ordinary state.
7. The transportation means according to claim 5, wherein when said
transportation means is in the ordinary state, a black-displayed
portion indicates the operation information, and when said
transportation means is in the non-ordinary state, said
black-displayed portion is caused to reverse and blink in the order
of white-black-white.
8. The transportation means according to claim 5, wherein when said
transportation means is in the ordinary state, a white-displayed
portion indicates a non-operation information portion, and when
said transportation means is in the non-ordinary state, said
white-displayed portion is caused to reverse and blink in the order
of black-white-black.
9. The transportation means according to claim 5, wherein said
device for measuring an operation of said transportation means
includes a steering angle detector and a tachometer, and said
non-ordinary operation occurs when said steering angle detector
detects a predetermined steering angle of said steering handle
and/or said tachometer detects a predetermined number of
revolutions of the engine.
10. The transportation means according to claim 9, wherein a
white-displayed portion in said ordinary state is caused to reverse
and blink in the order of black-white-black in a non-ordinary
state, and a black-displayed portion in said ordinary state is
caused to reverse and blink in the order of white-black-white in
the non-ordinary state.
11. The transportation means according to claim 9, wherein when
said transportation means is in the ordinary state, a
black-displayed portion indicates the operation information, and
when said transportation means is in the non-ordinary state, said
black-displayed portion is caused to reverse and blink in the order
of white-black-white.
12. The transportation means according to claim 9, wherein when
said transportation means is in the ordinary state, a
white-displayed portion indicates a non-operation information
portion, and when said transportation means is in the non-ordinary
state, said white-displayed portion is caused to reverse and blink
in the order of black-white-black.
13. A display device for a transportation means, comprising: a
liquid crystal display unit, said liquid crystal display unit
displaying operation information measured by adevice for measuring
an operation of the transportation means, an ordinary operation of
the transportation means is regarded as an ordinary state, and a
non-ordinary operation of the transportation means is regarded as a
non-ordinary state, wherein said liquid crystal display unit
reverses a white-and-black display thereof when the transportation
means shifts from the ordinary state to the non-ordinary state.
14. The display device for a transportation means according to
claim 13, wherein a white-displayed portion in said ordinary state
is caused to reverse and blink in the order of black-white-black in
a non-ordinary state, and a black-displayed portion in said
ordinary state is caused to reverse and blink in the order of
white-black-white in the non-ordinary state.
15. The display device for a transportation means according to
claim 13, wherein when the transportation means is in the ordinary
state, a black-displayed portion indicates the operation
information, and when the transportation means is in the
non-ordinary state, said black-displayed portion is caused to
reverse and blink in the order of white-black-white.
16. The display device for a transportation means according to
claim 13, wherein when the transportation means is in the ordinary
state, a white-displayed portion indicates a non-operation
information portion, and when the transportation means is in the
non-ordinary state, said white-displayed portion is caused to
reverse and blink in the order of black-white-black.
17. The display device for a transportation means according to
claim 13, wherein the device for measuring an operation of the
transportation means includes a steering angle detector and a
tachometer, and said non-ordinary operation occurs when the
steering angle detector detects a predetermined steering angle of a
steering handle of the transportation means and/or the tachometer
detects a predetermined number of revolutions of an engine of the
transportation means.
18. The display device for a transportation means according to
claim 17, wherein a white-displayed portion in said ordinary state
is caused to reverse and blink in the order of black-white-black in
a non-ordinary state, and a black-displayed portion in said
ordinary state is caused to reverse and blink in the order of
white-black-white in the non-ordinary state.
19. The display device for a transportation means according to
claim 17, wherein when the transportation means is in the ordinary
state, a black-displayed portion indicates the operation
information, and when the transportation means is in the
non-ordinary state, said black-displayed portion is caused to
reverse and blink in the order of white-black-white.
20. The display device for a transportation means according to
claim 17, wherein when the transportation means is in the ordinary
state, a white-displayed portion indicates a non-operation
information portion, and when the transportation means is in the
non-ordinary state, said white-displayed portion is caused to
reverse and blink in the order of black-white-black.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application claims priority under 35 U.S.C. .sctn.119
on Application No. 2001-284180, filed in Japan on Sep. 18, 2001,
the entirety of which is hereby incorporated by reference.
BACKGROUND OF THE INVENTION
[0002] 1. Field of the Invention
[0003] The present invention relates to a display device for
transportation means, for example, a jet propulsion boat and the
like of the form in which a jet water stream is discharged through
a nozzle to thereby advance a boat hull. When the boat hull takes a
turn to the left or right, a direction of the nozzle is changed by
steering. In this respect, the transportation means refers to a
general transportation means including ships, airplanes, railroads,
vehicles and the like.
[0004] 2. Description of Background Art
[0005] A jet propulsion boat obtains a propulsive force by
discharging a jet water stream. The jet propulsion boat changes the
direction of the jet water stream to thereby change the direction
of the boat hull. Therefore, the jet propulsion boat cannot change
direction without a jet water stream.
[0006] When avoiding, for example, an obstacle, a human being tends
to reduce the boat speed and at the same time, to turn the steering
wheel to the left or right as a general reaction. To reduce the
boat speed means to close the throttle. Even though the steering
wheel is turned to the left or right when the throttle has been
closed, it becomes impossible to change the direction of the boat
hull at will because there is no jet water stream.
[0007] As technique for complementing such a characteristic of the
jet propulsion boat, there is known, for example, U.S. Pat. No.
6,159,059. The above-described technique is, according to FIGS. 2
and 3 of this document, such that one end of a throttle cable 44 is
connected to a throttle regulator 46. The other end of the throttle
cable 44 is connected to a throttle lever 34. A throttle return
spring 49 is arranged for returning the throttle lever 34 to its
original state. A compressible material 52 is arranged at the base
of the throttle lever 34, whereby consideration has been given such
that when the throttle lever 34 is released, the throttle regulator
46 is prevented from being abruptly closed. In addition, even when
the throttle lever 34 is returned, a predetermined jet water stream
can be maintained for a short while.
[0008] The above-described control type thrust steering gear for a
ship mechanically controls in such a manner that when the throttle
lever 34 is returned, a predetermined jet water stream can be
maintained for a little while. More specifically, in a
transportation means for performing such control, there is
preferably a display device capable of sensitively and directly
notifying the driver that the transportation means is under
control.
SUMMARY OF THE INVENTION
[0009] Thus, it is an object of the present invention to provide a
display device capable of sensitively and directly notifying the
condition of the transportation means.
[0010] In order to achieve the above-described object, according to
a first aspect of the present invention, a display device for a
transportation means is equipped with a liquid crystal display unit
displaying operation information. An ordinary movement of the
transportation means is regarded as an ordinary state. When the
need arises for abruptly reducing the speed of the transportation
means or abruptly changing the direction of the transportation
means, and the like, it is regarded as a non-ordinary state. A
liquid crystal display unit reverses a white-and-black display
thereof when the transportation means shifts from the ordinary
state to the non-ordinary state.
[0011] When the transportation means shifts from the ordinary state
to the non-ordinary state, and the white-and-black display of the
liquid crystal display unit is reversed, to thereby sensitively and
directly notify the driver that the transportation means is in a
non-ordinary state.
[0012] According to a second aspect of the present invention, a
display device for a transportation means includes a
white-displayed portion in an ordinary state, which is caused to
reverse and blink in the order of black-white-black in a
non-ordinary state, and a black-displayed portion in the ordinary
state is caused to reverse and blink in the order of
white-black-white in the non-ordinary state. In the non-ordinary
state, reversing and blinking is caused to thereby strongly give
the impression on the driver that the transportation means is in
the non-ordinary state.
[0013] Further scope of applicability of the present invention will
become apparent from the detailed description given hereinafter.
However, it should be understood that the detailed description and
specific examples, while indicating preferred embodiments of the
invention, are given by way of illustration only, since various
changes and modifications within the spirit and scope of the
invention will become apparent to those skilled in the art from
this detailed description.
BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The present invention will become more fully understood from
the detailed description given hereinbelow and the accompanying
drawings which are given by way of illustration only, and thus are
not limitative of the present invention, and wherein:
[0015] FIG. 1 is a side view showing a jet propulsion boat onto
which a display device according to the present invention has been
mounted;
[0016] FIG. 2 is a plan view showing a jet propulsion boat onto
which a display device according to the present invention has been
mounted;
[0017] FIG. 3 is a plan view showing a steering mechanism of a jet
propulsion boat onto which a display device according to the
present invention has been mounted;
[0018] FIG. 4 is a block diagram showing an OTS control device of a
jet propulsion boat onto which a display device according to the
present invention has been mounted;
[0019] FIG. 5 is a view taken in the direction of arrow 5 of FIG.
1;
[0020] FIG. 6 is a plan cross-sectional view showing a display
device for a transportation means according to the present
invention;
[0021] FIG. 7 is a block diagram showing a power source system for
a jet propulsion boat onto which a display device according to the
present invention has been mounted;
[0022] FIG. 8 is a side view showing a main switch with a lanyard
switch for a jet propulsion boat onto which a display device
according to the present invention has been mounted;
[0023] FIG. 9 is an operation view showing a main switch with
lanyard switch for a jet propulsion boat onto which a display
device according to the present invention has been mounted;
[0024] FIG. 10 is a control flow chart for a jet propulsion boat
onto which a display device according to the present invention has
been mounted;
[0025] FIG. 11 is an operation explanatory view for a jet
propulsion boat onto which a display device according to the
present invention has been mounted;
[0026] FIG. 12 is an explanatory view for a display pattern for a
display device of a transportation means according to the present
invention;
[0027] FIG. 13 is an explanatory view showing a start-up inspection
procedure of a jet propulsion boat onto which a display device
according to the present invention has been mounted; and
[0028] FIG. 14 is a control system view for a jet propulsion boat
onto which a display device according to the present invention has
been mounted.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0029] The present invention will now be described with reference
to the accompanying drawings. The drawings should be viewed in the
direction of the orientation of the reference numerals.
[0030] FIG. 1 is a side view showing a jet propulsion boat onto
which a display device according to the present invention has been
mounted. In FIG. 1, the transportation means is a jet propulsion
boat 10 which includes a fuel tank 14 mounted to a front part 11a
of a boat hull 11. An engine 15 is provided behind this fuel tank
14. A pump chamber 16 is provided behind the engine 15, and a jet
propeller 17 is provided in this pump chamber 16. An exhaust unit
18 includes a suction side mounted to the engine 15 and an exhaust
side mounted to the pump chamber 16. A steering handle 28 is
mounted above the fuel tank 14, and a seat 29 is mounted behind
this steering handle 28.
[0031] The jet propeller 17 has a housing 21 extending backward
from an opening 13 in a hull bottom 12, and is constructed such
that an impeller 22 is rotatably mounted within the housing 21. The
impeller 22 is coupled to a driving shaft 23 of the engine 15.
[0032] In the jet propeller 17, the engine 15 is driven to rotate
the impeller 22, whereby water sucked through the opening 13 in the
hull bottom 12 can be injected backward of the boat hull 11 through
a steering pipe 25, which acts as a nozzle opening at a rear end of
the housing 21.
[0033] The steering pipe 25 is a member mounted to the rear end of
the housing 21 so as to be able to freely swing in the lateral
direction. The steering pipe 25 acts as a nozzle for steering which
controls the steering direction of the boat hull 11 by swinging in
the lateral direction through operation of the steering handle
28.
[0034] In the jet propulsion boat 10, fuel is supplied to the
engine 15 from the fuel tank 14 to drive the engine 15. A driving
force of the engine 15 is transmitted to the impeller 22 through
the driving shaft 23 to rotate the impeller 22, whereby water is
sucked from the opening 13 in the hull bottom 12 and the water thus
sucked can be injected through the steering pipe 25 through the
rear end of the housing 21 for propelling.
[0035] Also, as will be described below, the jet propulsion boat 10
is a boat hull equipped with a control unit in order to precisely
control an amount of the jet water stream or a duration during
which the jet water stream can be injected. Furthermore, the jet
propulsion boat 10 is also a boat hull capable of being switched
into a limited operation mode in which the engine output can be
controlled so as not to exceed a predetermined output.
[0036] In FIG. 1, reference numeral 26 designates a reverse bucket,
which when reversing the boat hull, is moved over the steering pipe
25 to flow the jet water stream forward obliquely downward.
Reference numeral 33 is an operating knob for operating the reverse
bucket 26. Reference numeral 34 is an exhaust pipe. Reference
numeral 35 is an exhaust body. Reference numeral 27 is a battery
which is a power source for the boat hull 11. Reference numeral 36
is a water muffler. Reference numeral 37 is a water lock pipe.
Reference numeral 38 is a tail pipe. Reference numeral 39 is a
resonator. Reference numeral 45 is a main switch with a lanyard
switch.
[0037] FIG. 2 is a plan view showing a jet propulsion boat onto
which a display device according to the present invention has been
mounted. The steering handle 28 includes a steering shaft 41
rotatably mounted on the boat hull. A steering wheel bar 43 is
mounted to a top end of the steering shaft 41. Right and left
steering wheel grips 44L, 44R are mounted onto the left and right
end portions of the steering wheel bar 43. A main switch 45 with a
lanyard switch is provided at the base of the left steering wheel
grip 44L. A throttle lever 46 is mounted on the base of the right
steering wheel grip 44R in such a manner as to be able to freely
swing. A throttle cable 47 extends to the throttle from the
throttle lever 46. A steering detection mechanism 48 is provided at
the lower end of the steering shaft 41.
[0038] FIG. 3 is a plan view showing a steering mechanism for a jet
propulsion boat onto which a display device according to the
present invention has been mounted. The steering detection
mechanism 48 includes a bracket 51 mounted on the boat hull 11 (See
FIG. 1). A switch cam 52 is mounted to the lower end of the
steering shaft 41. A steering switch 53 is provided for turning
ON/OFF through the use of the switch cam 52. A cam plate 54 is
mounted to the lower end of the steering shaft 41. In this respect,
reference numeral 55 designates a driving link for driving the
steering pipe 25 (See FIG. 1) by being rotatably mounted to the end
portion of the cam plate 54. Reference numeral 53a is a switch
lever for the steering switch 53, and reference numeral 53b is a
body portion of the steering switch 53.
[0039] FIG. 4 is a block diagram showing an OTS control device for
a jet propulsion boat to which a display device according to the
present invention has been mounted. In this case, OTS is the
abbreviated name for an off Throttle Steering System. The OTS is a
device in which even when the throttle 34 has been returned, a
predetermined jet water stream is rendered capable of being
maintained for a predetermined period of time.
[0040] An OTS control device 60 for a jet propulsion boat is a
system includes the steering handle 28 for steering the boat hull
11 (See FIG. 1). A fuel injection system 61 is provided for
supplying fuel to the engine 15 (See FIG. 1). A control unit (ECU)
101 is provided for controlling the boat hull 11. A display device
70 equipped with a display control unit 74 as a control unit, is
provided for displaying a state of the boat hull 11. This system is
a system for raising the number of revolutions of the engine 15 to
a predetermined number of revolutions irrespective of the throttle
64 when the engine 15 rotates at a predetermined number of
revolutions or higher for a predetermined time period or more, and
the throttle 64 is opened at a predetermined opening or more for a
predetermined time period or more. In addition, if the throttle 64
is closed and at the same time, the steering wheel 28 is turned to
the left or right more than a predetermined angle, the system
raises the number of revolutions of the engine 15.
[0041] The fuel injection system 61 includes a solenoid 62 for
controlling negative pressure on the basis of information from the
control unit (ECU) 101. The throttle 64 is provided in an intake
air passage 63, for adjusting an amount of an air-fuel mixture to
be supplied to the engine 15 (See FIG. 1). A diaphragm 65 is
provided between the solenoid 62 and the throttle 64 for adjusting
a throttle opening. A throttle position sensor 66 is provided for
detecting the throttle opening. A one-way valve 67 is provided
between the solenoid 62 and the intake air passage 63, for
preventing negative pressure from reverse-flowing, and pressure
from entering. A surge tank 68 is provided between the one-way
valve 67 and the solenoid 62, for relaxing negative pressure
fluctuation. An injector 69 is provided for causing fuel to be in a
fine spray state to be supplied to the intake air passage 63. In
this figure, .theta. designates the throttle opening.
[0042] FIG. 5 is view in the direction of the arrow 5 in FIG. 1,
and shows a front surface of a display device 70 (hereinafter,
"display device 70") of a transportation means according to the
present invention. The display device 70 includes a liquid crystal
device 71 as a liquid crystal display unit for displaying operation
information. A warning lamp 72 is provided for lighting or blinking
when a various warning is needed. An operating switch 73 is
provided for performing a switching operation or an input
operation. A display control unit 74 is provided for driving the
liquid crystal device 71 and the warning lamp 72 and controlling
the boat hull 11. A housing 75 is provided for collectively
covering the liquid crystal device 71, warning lamp 72 and display
control unit 74. A buzzer 79 is provided for giving a warning sound
when lighting or blinking the warning lamp 72.
[0043] The liquid crystal device 71 is obtained by forming a
tachometer 76 for indicating a number of revolutions of the engine
15 (See FIG. 1), a speed meter 77 for indicating the boat speed,
and a multifunctional display unit 78 for displaying operation
information and various warnings.
[0044] The multifunctional display unit 78 includes a charging mark
78a for blinking when the battery 27 (See FIG. 1) is lower than
predetermined voltage. A water temperature warning mark 78b is
provided for blinking when cooling water temperature exceeds a
predetermined temperature. An oil warning mark 78c is provided for
blinking when an amount of engine oil is lower than a predetermine
amount, or when engine oil pressure is lower than a predetermined
value. A fuel injection system warning mark 78d (hereinafter, will
be abbreviated as "Fl warning mark 78d") is provided for blinking
when abnormal conditions are encountered with the fuel injection
system 61 (See FIG. 3). A limit mode indicating mark 78e is
provided as an indicating lamp indicating that a limited operation
mode, which limits the engine output so as not to exceed the
predetermined output has been set. A remaining quantity indicator
78f is provided for indicating the remaining fuel quantity. A fuel
replenish warning mark 78g is provided for urging to replenish fuel
when the remaining fuel quantity is small. An ID number mark 78h is
provided for blinking when an ID (Identification) number as a
secret number for theft prevention is set and is locked. A key mark
78i is provided for lighting when the theft-prevention function has
been released. A selector display unit 78j is provided for
displaying after being switched to time indication, hours underway
indication, the number of engine revolutions (hereinafter, will
abbreviated as "Ne tacho-indication"), navigation distance
indication or cumulative hours underway indication.
[0045] In other words, the jet propulsion boat 10 (See FIG. 1) is
also a propulsion boat equipped with a theft-prevention function,
the power source of which can be turned ON or OFF by inputting the
ID number.
[0046] The operating switch 73 includes a set switch 73a to be used
when setting time and the like. The mode switch 73b is used when
switching the selector display unit or when setting the limited
operation mode. The ID set switch 73c and the ID number switch 73d
are used when encoding with an ID number for determination.
[0047] FIG. 6 is a plan cross-sectional view showing a display
device of the transportation means according to the present
invention. A housing 75 includes a lower case 81 for mounting a
display control unit 74. An upper case 83 is mounted to the lower
case 81 through a packing 82. A display window 84 is mounted onto
an opening 83a of the upper case 83. A bush 86 is provided to draw
out a harness 85 obtained by tying up in a bundle from the bottom
81a of the lower case 81.
[0048] Reference numeral 81b designates a boss for supporting the
display control unit 74 by standing it in the lower case 81.
Reference numeral 81c is a set boss for fastening the display
control unit 74 by standing it in the lower case 81. Reference
numerals 87a and 87b are connectors connected to the display
control unit 74. Reference numerals 88a and 88b are a plurality of
harnesses extending from the display control unit 74.
[0049] FIG. 7 is a block diagram showing a power source system for
a jet propulsion boat onto which a display device according to the
present invention has been mounted. The power source system 90
includes a main switch 45 with a lanyard switch connected to a
battery 27 in parallel. A main relay 91 is provided for turning
ON/OFF the battery 27 for supplying to the fuel injection system 61
and other accessories 92 (fuel pump to be described later) by
connecting a coil portion 91a to the main switch 45 in series and
connecting a switch portion 91b to the battery 27 in series. The
display control unit 74 connects to the main switch 45 in parallel
in order to control the main relay 91. The control unit (ECU) 101
is provided for controlling the engine 15 (See FIG. 1) having the
fuel injection system 61 and the like.
[0050] The control unit (ECU) 101 is a portion which controls the
engine 15 and controls the jet propulsion boat 10 (See FIG. 1)
which controls the fuel injection system 61 and other accessories
92.
[0051] The display control unit 74 is equipped with a microcomputer
74A which forms the heart of the system. A switch circuit 93 turns
ON/OFF the power source of the display control unit 74 itself by
inputting information of the main switch 45 with lanyard switch and
a predetermined ID number. Delay means 94 is provided for delaying
the operation of the switch circuit 93 for a predetermined time
period. The delay means 94 inputs ID information for theft
prevention, information of the main switch with lanyard switch,
speed information of the boat hull, fuel information for displaying
the remaining fuel quantity, engine number of revolutions
information, and warning lamp display information and the like for
lighting the multifunctional function display unit 78 shown in FIG.
5 and the warning lamp 72, and outputs limited operation
information when the fuel injection system 61 (See FIG. 4) is
controlled for control operation, and lock information which has
turned OFF the main relay 91, and the like. In this respect, a
reference numeral 92 designates other accessories.
[0052] In other words, a power source system for a small boat
supplies a power source to accessories including the fuel injection
system 61, and the like, and is equipped with a control unit for
controlling the engine. The small boat is equipped with the main
switch 45 with a lanyard switch capable of turning OFF the power
source in an emergency by connecting to an occupant through a wire.
The power source system 90 is equipped with a main relay 91 for
turning ON/OFF the power source to be supplied to the accessories.
Control units (display control unit 74) are connected to the main
switch 45 in parallel in order to control the main relay 91, to
supervise the ON/OFF state of the main switch 45, through the use
of the control unit (display control unit 74) and to ON/OFF control
the main relay 91 based on the ON/OFF state.
[0053] The structure is arranged such that the main relay 91 is
provided in order to turn ON/OFF the power source to be supplied to
the accessories including the fuel injection system 61. control
units (display control unit 74) are provided in order to control
this main relay 91. The control units (display control unit 74) are
to be connected to the main switch 45 in parallel. An ON/OFF state
of the main switch 45 is supervised by the control unit (display
control unit 74) in such a manner that the main relay 91 is turned
ON/OFF on the basis of the ON/OFF state. Therefore, ON/OFF of the
power source to be supplied to the accessories including the fuel
injection system 61 can be collectively controlled. As a result,
the power source system 90 can be simplified.
[0054] Also, the display control unit 74 outputs to the control
unit (ECU) 101 lock information when the main relay 91 is OFF.
Therefore, since the control unit (ECU) 101 has the lock
information, the engine 15 (See FIG. 1) cannot be started even
though the main relay 91 is directly connected.
[0055] More specifically, the power source system 90 includes a
theft-prevention function in the control unit (display control unit
74). When the control unit (ECU) 101 outputs information to turn
OFF the main relay 91 from the control unit (display control unit
74), it is caused to output a stop signal to stop the engine 15 on
the basis of this OFF signal.
[0056] When information to turn OFF the main relay 91 is outputted
from the control unit (display control unit 74), the stop signal to
stop the engine 15 is outputted on the basis of this OFF signal,
whereby there is no possibility that the engine 15 is started even
when, for example, the main relay 91 is directly coupled.
Therefore, it is possible to prevent the small boat (jet propulsion
boat 10) from being stolen.
[0057] FIG. 8 is a side view showing a main switch with a lanyard
switch of a jet propulsion boat onto which a display device
according to the present invention has been mounted. The main
switch 45 includes a lanyard switch portion (switch operation
strap) 57 for being connected to the occupant during navigation and
a main switch body portion 58 capable of being turned ON/OFF by the
lanyard switch portion 57.
[0058] The lanyard switch portion 57 includes a clip portion 57a
for turning the power source ON/OFF by sandwiching it in the main
switch body portion 58 or removing it. A flexible wire 57b extends
from the clip 57a and a hand strap 57c is provided to be worn on
the occupant's arm by mounting to the tip end of the wire 57b.
[0059] The main switch portion 58 includes a housing 58a for being
mounted on the boat hull 11 (See FIG. 1). A switch 58b is housed in
this housing 58a. An outer knob 58c is provided for operating the
switch 58b. A stop button 58d is provided inside the outer knob 58c
and a start switch 58e is provided for starting the engine 15 (See
FIG. 1).
[0060] This switch turns the switch 58b ON when the outer knob 58c
is pulled outward, maintains the switch ON when the clip 57a of the
lanyard switch portion 57 is sandwiched, automatically returns to
the initial position to turn the switch OFF when the clip 57d comes
off, and can turn the power source OFF by pressing the stop button
58d with the clip 57a sandwiched. Hereinafter, the detailed
description will be made of an operation of the main switch 45 with
the lanyard switch.
[0061] FIGS. 9(a) to 9(c) are operating views of the main switch
with a lanyard switch for a jet propulsion boat onto which a
display device according to the present invention has been
mounted.
[0062] In FIG. 9(a), the clip 57a of the lanyard switch portion 57
is pressed into between the housing 58a of the main switch body
portion 58 and the outer knob 58c as indicated by an arrow {circle
over (1)}, whereby the outer knob 58c moves as indicated by an
arrow {circle over (2)}, and the switch 58b can be turned ON.
[0063] In FIG. 9(b), the stop button 58d is pressed as indicated by
an arrow {circle over (3)} with the lanyard switch portion 57
fitted in the main switch body portion 58, whereby the switch 58b
can be turned OFF.
[0064] In FIG. 9(c), when the clip 57a of the lanyard switch
portion 57 is pulled out between the housing 58a of the main switch
body portion 58 and the outer knob 58c as indicated by an arrow
{circle over (4)}, the outer knob 58c automatically returns
together with the stop button 58d as indicated by an arrow {circle
over (5)}, and the main switch body portion 58b turns OFE
[0065] Hereinafter, the description will be made of a control flow
of the jet propulsion boat 10.
[0066] FIG. 10 is a control flow diagram for a jet propulsion boat
according to the present invention. In this respect, STxx
designates a step No. (for symbols, refer to FIG. 4)
[0067] ST01: Assuming the number of revolutions of an engine to be
Ne, and that of a predetermined engine to be N1 (hereinafter, it
will be described as "predetermined number of revolutions N1"), it
is examined whether or not the number of revolutions of an engine
Ne exceeds the predetermined number of revolutions N1
(Ne.gtoreq.N1). If YES, the sequence will proceed to ST02, and if
NO, the sequence will return to the start. In this case, the
predetermined number of revolutions N1 is set to 3,700 rpm.
[0068] ST02: Assuming a throttle opening to be .theta., and a
predetermined throttle opening to be .theta.1 (hereinafter, it will
be described as "predetermined opening .theta.1"), it is examined
whether or not the throttle opening .theta. exceeds the
predetermined opening .theta.1. If YES, the sequence will proceed
to ST03, and if NO, the sequence will return to the ST01. In this
case, the predetermined opening .theta.1 is set to 13.degree..
[0069] ST03: Assuming a time period to be T, and a predetermined
time period to be T1, it is examined whether or not both a state of
the predetermined number of revolutions N1 or higher and a state of
the predetermined opening .theta.1 or larger exceed the
predetermined time period T1. If YES, the sequence will proceed to
ST04, and if NO, the sequence will return to the ST01. In this
case, the predetermined time period T1 is set to 2 sec.
[0070] ST04: It is examined whether or not the throttle 64 has been
closed (throttle opening .theta.=0). If YES, the sequence will
proceed to ST05, and if NO, the ST04 will be repeated.
[0071] ST05: Has a steering switch 53 turned ON? If YES, the
sequence will proceed to ST06, and if NO, the sequence will return
to ST04.
[0072] ST06: Assuming the predetermined delay time to be Td, has
the delay time Td elapsed (T.gtoreq.Td)? In this case, the delay
time Td is set to 0.7 sec. If YES, the sequence will proceed to
ST07, and if NO, the ST06 will be repeated.
[0073] ST07: Assuming the predetermined maintenance number of
revolutions to be N2, the engine number of revolutions Ne is raised
to the maintenance number of revolutions N2 to maintain the number
of revolutions. In this case, the maintenance number of revolutions
N2 is set to 2100 rpm.
[0074] ST08: Assuming the predetermined maintenance time to be T2,
has the maintenance time T2 elapsed? If YES, the step will be
completed, and if NO, the ST08 will be repeated. In this case, the
maintenance time T2 is set to 7 sec.
[0075] In other words, a jet propulsion boat includes a jet water
stream caused by a jet propeller 17 having an engine 15 as a
driving source. The jet water stream is caused to be discharged
through a steering pipe 25 (nozzle), whereby the boat hull 11 is
caused to advance. When the boat hull 11 makes a turn to the left
or right, the direction of the nozzle is changed by the steering
handle 28. The jet propulsion boat 10 (See FIG. 1) is equipped with
a control unit 74 (See FIG. 4) for raising the number of
revolutions of the engine to a predetermined number of revolutions
(maintenance number of revolutions N2) irrespective of the throttle
64. At the same time, the control unit maintains the same number of
revolutions only for a predetermined maintenance time period T2
when the engine 15 rotates at a predetermined number of revolutions
N1 or higher for a predetermined time period T1 or more, the
throttle 64 (See FIG. 4) is opened at a predetermined opening
.theta.1 or more for a predetermined time period T1 or more, the
throttle 64 is closed and the steering wheel 28 is turned to the
left or right more than a predetermined angle.
[0076] When the throttle is closed to turn the steering wheel 28
(See FIG. 4) in order to avoid an obstacle appearing in front of
the boat hull 11 (See FIG. 1), the amount of the jet stream is
reduced. Therefore, the maneuverability is deteriorated. Thus,
under certain conditions, the number of revolutions of the engine
is raised to a predetermined number of revolutions to increase the
amount of the jet stream.
[0077] In this case, when the throttle 64 is closed in order to
perform driving at a slow speed such as during entry into a port,
when the number of revolutions of the engine is reduced, it is not
necessary to increase the number of revolutions Ne of the engine.
Also, since it is the maneuverability that matters, it is not
necessary to increase the number of revolutions of the engine when
the steering wheel 28 is not turned.
[0078] Accordingly, when the engine 15 rotates at a predetermined
number of revolutions N1 or higher for a predetermined time period
T1 or more, and the throttle 64 (See FIG. 4) is opened at a
predetermined opening .theta.1 or more for a predetermined time
period T1 or more, the throttle 64 is closed and the steering wheel
28 is turned to the left or right more than a predetermined angle,
the above-described condition has been set.
[0079] Thereby, only when necessary, the number of revolutions Ne
of the engine can be raised to a predetermined number of
revolutions (maintenance number of revolutions N2).
[0080] In other words, a control unit 74 (See FIG. 4) is provided
which raises the number of revolutions Ne of the engine to a
predetermined number of revolutions (maintenance number of
revolutions N2) and maintains it only for a predetermined
maintenance time period T2, whereby an amount of jet stream is
secured. Thus, the steering response of the jet propulsion boat 10
(See FIG. 1) can be improved.
[0081] FIG. 11 is an operation explanatory view of a jet propulsion
boat onto which a display device according to the present invention
has been mounted. In this respect, the figure of the jet propulsion
boat 10 which moves with elapsed time is indicated by the jet
propulsion boat 10A to 10D.
[0082] In the jet propulsion boat 10A, it is assumed to be under
navigation in a state in which the predetermined number of
revolutions N1 and the predetermine opening .theta.1 has been
exceeded as shown in FIG. 10 and in a state in which the
precondition for control for more than the predetermined time
period T1 has been satisfied. At the time, an avoidance buoy M is
detected, and the need for avoiding this avoidance buoy M becomes
pressing.
[0083] In the jet propulsion boat 10B, in order to avoid the
avoidance buoy M, the throttle 64 is closed to use the steering
handle 28 (See FIG. 4) for a steering operation. In the jet
propulsion boat 10B; however, as described above, the direction
cannot be changed without a jet water stream. Thus, when the
throttle 64 is turned OFF and the steering switch 53 is turned ON,
after a lapse of a predetermined delay time period Td, the number
of revolutions Ne of the engine is raised to N2 to generate a jet
water stream (control start). In this respect, as regards the OFF
timing of the throttle 64 and the ON timing of the steering switch
53, whichever is earlier, there is no problem.
[0084] Also, since it is a ship, which navigates in a sliding state
in 10B, the jet propulsion boat sideslips frequently. Accordingly,
to perform a control start after a predetermined delay time period
is preferable in order to efficiently steer the boat hull 11 (See
FIG. 1).
[0085] The jet propulsion boat starts changing the direction in
10C. As a result, the jet propulsion boat can avoid the avoidance
buoy M in 10D at the driver's will.
[0086] FIGS. 12(a) to 12(e) are explanatory views for display
patterns of the display device of the transportation means
according to the present invention.
[0087] FIG. 12(a) shows a display pattern of a tachometer 67 in the
display device 70 under navigation (hereinafter, referred to as
"ordinary state"), and shows that when the number of revolutions Ne
of the engine is raised to 2000 rpm, black is indicated between 0
and 2, and white is indicated between 2 and 8.
[0088] FIGS. 12(b) to 12(e) show display patterns of the tachometer
67 under control (hereinafter, referred to as "non-ordinary
state"), and the tachometer 67 of a liquid crystal display unit
(liquid crystal device 71) reverses and blinks.
[0089] More specifically, when it shifts from the ordinary state to
the non-ordinary state, a white-and-black display of the liquid
crystal display unit (liquid crystal device 71) is reversed. A
white-indicated portion in the ordinary state is caused to reverse
and blink in the order of black-white-black in the non-ordinary
state, and a black-indicated portion in the ordinary state is
caused to reverse and blink in the order of white-black-white in
the non-ordinary state.
[0090] In other words, in the transportation means (jet propulsion
boat 10) equipped with the liquid crystal display unit (liquid
crystal device 71) displaying the operation information, ordinary
movement of the transportation means is regarded as the ordinary
state. When the need arises for abruptly reducing a speed of the
transportation means or abruptly changing the direction of the
transportation means, and the like are distinguished as a
non-ordinary state, the liquid crystal display unit (liquid crystal
device 71) reverses a white-and-black display thereof when the
transportation means shifts from the ordinary state to the
non-ordinary state.
[0091] When the transportation means (jet propulsion boat 10)
shifts from the ordinary state to the non-ordinary state, the
white-and-black display of the liquid crystal display unit (liquid
crystal device 71) is caused to reverse, whereby it is possible to
sensitively and directly notify the driver that the transportation
means is in a non-ordinary state. As a result, it becomes easier to
recognize that the boat hull 11 is in a non-ordinary state.
[0092] Also, in other words, a white-displayed portion in the
ordinary state is caused to reverse and blink in the order of
black-white-black in the non-ordinary state, and a black-displayed
portion in the ordinary state is caused to reverse and blink in the
order of white-black-white in the non-ordinary state.
[0093] In the non-ordinary state, reversing and blinking is caused
to thereby strongly give the impression on the driver that the
transportation means (jet propulsion boat 10) is in the
non-ordinary state.
[0094] FIG. 13 is an explanatory view showing a start-up inspection
procedure for the jet propulsion boat onto which a display device
according to the present invention has been mounted. In this
respect, STxx designates a step No. (for symbols, refer to FIG.
4).
[0095] ST11: Start the engine 15 (See FIG. 1).
[0096] ST12: The precondition for control is satisfied. That is,
maintains at a predetermined number of revolutions N1 of 3700 rpm
or over, and at a predetermined opening .theta.1 of 13.degree. or
over for a predetermined time period of 2 sec or over.
[0097] ST13: Turn OFF the throttle 64, and turn ON the steering
switch 53.
[0098] ST14: Delay time period Td is normal (normal at Td=0.7sec)?
If YES, the sequence will proceed to ST15. If NO, the control unit
74 may be out of order.
[0099] ST15: Is the number of revolutions Ne of the engine raised
to N1=2100 rpm? If YES, the sequence will proceed to ST16. If NO,
the solenoid 62, the intake air passage 63 or a throttle link 47
(See FIG. 3) may be out of order.
[0100] ST16: Maintenance time period T2 is normal (normal at
Td=7sec)? If YES, the sequence will proceed to ST17. If NO, the
control unit 74 may be out of order.
[0101] ST17: If NO, the display device 70 blinks? If YES, finish
the start-up inspection. If NO, the display device 70, the steering
switch 53 or the throttle position sensor 66 may be out of
order.
[0102] FIG. 14 is a view showing a control system for a jet
propulsion boat onto which a display device according to the
present invention has been mounted.
[0103] The control system 100 for the jet propulsion boat includes
a battery 27, which is a power supply source. An injector 69
(displayed as "injector 69A to 69D") is provided for the fuel
injection system 61 (See FIG. 4). The control system 100 also
includes a main relay 91, a display control unit 74 mounted on the
display device 70 (See FIG. 5), and a control unit (ECU) 101 to be
controlled by the engine 15 (See FIG. 1).
[0104] In FIG. 14, reference numeral 102 designates a starter,
reference numeral 103 designated a starter relay for turning the
starter 102 ON/OFF, reference numeral 104 is a generator, reference
numeral 105 is a regulator for regulating voltage generated by the
generator, reference numeral 107 is a buzzer connected to the
display control unit 74, reference numeral 108 is a speed sensor
connected to the display control unit 74, reference numeral 109 is
a fuel sensor connected to the display control unit 74, reference
numeral 111 is a temperature sensor connected to the control unit
(ECU) 101, reference numeral 112 is a water temperature sensor
connected to the control unit (ECU) 101, reference numeral 113 is
an exhaust temperature detection sensor connected to the control
unit (ECU) 101, reference numeral 114 is an oil temperature sensor
for detecting the engine oil temperature by connecting to the
control unit (ECU) 101, reference numerals 116A to 116D are
ignition system members (ignition plug and ignition coil),
reference numeral 117 is an oil pressure sensor, reference numeral
118 is a knock sensor for detecting knocking of the engine 15,
reference numeral 121 is a fuel pump, and reference numeral 122 is
a relay for turning ON/OFF the fuel pump.
[0105] A flow indicated by an arrow A indicates engine oil
information, temperature information, fuel information, engine
number of revolutions information, warning lamp display
information, and OTS (Off Throttle Steering System) which are
transmitted from the control unit (ECU) 101 to the display control
unit 74.
[0106] Also, a flow indicated by an arrow B indicates lock
information and limited operation information which are transmitted
from the display control unit 74 to the control unit (ECU) 10.
[0107] In this respect, in the embodiments, it has been arranged
such that as shown in FIG. 12, a white-displayed portion in the
ordinary state is caused to reverse and blink in the order of
black-white-black in the non-ordinary state, and a black-displayed
portion in the ordinary state is caused to reverse and blink in the
order of white-black-white in the non-ordinary state. However, the
present invention is not limited thereto, but when for example,
color liquid crystal is used for the liquid crystal display unit,
gradations of color do not matter.
[0108] In the embodiments, the description has been made of the
display device under OTS control of the jet propulsion boat as
shown in FIG. 12, as an example of the non-ordinary state, but the
present invention is not limited thereto, but the non-ordinary
state may be during operation of ABS of the vehicle, during
operation of the traction control, or during operation of an
attitude control device. Also, it may be when important parts
(engine, driving system, steering system and the like) are out of
order.
[0109] The present invention exhibits the following effects due to
the above-described structure.
[0110] According to a first aspect of the present invention, an
ordinary movement of the transportation means is regarded as an
ordinary state. When the need arises for abruptly reducing the
speed of the transportation means or abruptly changing the
direction of the transportation means, and the like it is regarded
as a non-ordinary state. A liquid crystal display unit reverses a
white-and-black display thereof when the transportation means
shifts from the ordinary state to the non-ordinary state.
Therefore, the driver can be sensitively and directly notified that
the transportation means is in a non-ordinary state. As a result,
it becomes easier to recognize that the transportation means is in
a non-ordinary state.
[0111] According to a second aspect of the present invention, a
white-displayed portion in an ordinary state is caused to reverse
and blink in the order of black-white-black in a non-ordinary
state, and a black-displayed portion in the ordinary state is
caused to reverse and blink in the order of white-black-white in
the non-ordinary state. Therefore, it is possible to strongly give
the impression on the driver that the transportation means is in
the non-ordinary state.
[0112] The invention being thus described, it will be obvious that
the same may be varied in many ways. Such variations are not to be
regarded as a departure from the spirit and scope of the invention,
and all such modifications as would be obvious to one skilled in
the art are intended to be included within the scope of the
following claims.
* * * * *